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General Motors is making headlines again, this time not for a vehicle recall, but over something far more common in today’s cars: dash cams.
A Cadillac Lyriq owner recently took to Reddit after a service advisor allegedly told them their dash cam could “wreak havoc” on the vehicle’s electrical system and potentially void the warranty.
Why Are Dash Cams a Problem in GM EVs?
The owner explained that their 2025 Cadillac Lyriq had been in for service due to ABS and parking brake warnings. They noted that the dash cam had been installed for over a year with no issues. However, the dealership suggested the aftermarket camera might be the cause, and worse, that it could void the warranty entirely.
Understandably, this sparked confusion and pushback. Many in the EV community were quick to label the dealership’s claim as “BS,” arguing that dash cams are harmless if installed properly. Still, there’s more to the story than meets the eye.
What GM Actually Says About Aftermarket Devices
A look at GM’s documentation reveals some cautionary language. The 2025 Cadillac Lyriq owner’s manual warns against connecting devices to the vehicle’s Data Link Connector (DLC), saying it may interfere with vehicle systems and “cause a crash.” It also states that “some electrical equipment can damage the vehicle” and may not be covered under warranty.
Chevrolet’s 2025 warranty guide echoes this stance. It explicitly excludes coverage for damage caused by “modifications,” “tampering,” and “third-party externally connected electrical products.”
While none of this mentions dash cams specifically, it leaves GM room to deny warranty claims if a third-party device is suspected of causing damage. That’s the key issue. It shifts the burden of proof onto the owner to prove that the dash cam didn’t cause the fault.
What Should Owners Do?
At this stage, there is no public policy from GM explicitly banning dash cams or stating that their installation automatically voids the warranty. Still, owners should be cautious. If you’re installing a dash cam, avoid tapping into sensitive components, use a fuse tap or dedicated 12V socket, and consider professional installation.
If your warranty claim is denied over a dash cam, don’t panic. Get a second opinion from another dealership or seek legal advice.
Have You Been Denied Warranty Coverage?
You don’t have to accept unfair treatment. If your EV warranty has been denied due to an aftermarket device or dealer speculation, you may still have legal options. Call 833 Lemon Firm and speak to a case analyst today. We’re here to help you fight back.